Lighting fixture



F. W. MATHIEU.

LIGHTING FIXTURE.

APPLICATION FILED DEC. 4. 191s..

Patented Seplz. 12A, 1922-.

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Patented Sept. l2, i922.

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FREDERICK W. MATHIEU, OF NEW YORK, N. Y., ASSIGNOR TO DUPLEXALITE COR- PORATION, OF NEW YORK, N. Y.,

A CORPORATION OF NEW YORK.

LIGHTING FIXTURE.

Application led December 4, 1918. Serial No. 265,202.

To a?? whom if may conce/i1 Be it. known that I` FREDERICK IV. MATH- Int'. a citizen of the Fnited States. a resident of the city of New York. county and State t of New York. have invented an Improvement in Lighting Fixtures, of which the following is a specification.

My invention relates to lighting fixtures. and particularly such fixtures as are adapted to be used with electric incandescent or sim` ilar lamps. It is an object of the present invention to devise a fixture which shall be simple in construction and easy to manufacture. and one which may be readily assembled and disassembled. It is another object 'of the present invention to devise a xture which will economically and agreeably distribute the light values of the source of light. to produce an effect which is pleasing to the eyes and to make highly economic use of the light values of the source of light employed.

By way of example. I have shown a preferred embodiment of the fixture of my invent-ion in the accompanying drawings` whe-rein- Fig. 1 is a side-elevation of such embodiment;

Fig. 2 is a cross-section partly in elevation of the same:

Fig. 3 is a bottom plan view of the same:

Fig. l is a detailed fragmentary view of a part of the same.

In the illustrative form here shown. the fixture comprises a cup-shaped member 1 with which is associated a tubular member 2 conducting the lead wires (not shown) to a lamp socket 3. Preferably the lamp socket 3 is provided with a flange member I, attached thereto. as by being made integral with or by being soldered or otherwise attached to the same. Otherwise the lamp socket 3 mav be of any usual or desired type of construction.

ociated with the lamp socket 3 are a plurality of. here shown as four supporting members 5. Each supporting member 5 preferably consisting of an integral wire. which may be of any desired cross-section. round or fiat. here shown as fiat. comprises a main portion 6. an inner bent porti'on T at one end of the main portion. and an outer portion S at lthe other end of said main portion.

The outer portion S comprises a transversely bent portion 9 having a hooked outer extremity 10. The bent portions 7 of the supporting members 5 are retained in the flange l of the socket 3 by such portions engaging apertures ll in said flange.

Held in position by the hooked portions 10 of the supporting members 5 is a light distributing member 1Q. whichv preferably comprises a shall'ow member of spherical configuration. The member l2 is preferably translucent and is also provided on the inner side thereof with a highly reflecting surface 13. A

Supported at the bends 11 between the main portions 6 and the transverselybent portions 9 of the supporting members 5 is a second light distributing member 15 comprising. preferably, an upwardly-flaring member which is translucent and is provided with an inner highly reflecting surface 16. The member 15 is preferably of'a configuration which approximates the surface of revolution produced by revolving a portion of a parabola. as more clearly seen in Fig. 2 of the drawings.

'hile various materia-ls. opaque. translucent. or transparent. and made of metal, glass. porcelain. or fabric may be employed for the members 12 and 15, I prefer, as already described. to make these members of translucent material having inner highly reflecting Surfaces. For this purpose I pre-- fer to use composite-layer vitreous material.

clearly shown in section in Fig 4f of the drawings. and consisting of an outer layer 1T of opal or other translucent glass. an inner layer 18 of highly polished. highly reflecting. ordinary transparent glass. having a reflecting index or albedo approaching that of the ordinary silvered mirror. and an intermediate layer 19 of a glass which is intended to remove or dissipate the u11- desirable. 'such as the ultra-violet. components of the source of light, thereby rendering the light soft and agreeable to the eyes.

rIhel manner of assembling the fixture of my invention will be substantially clear from the foregoing description. After removing the fixtures as a whole. from the ceiling or other structure to which the same isA attached. the member l5 maybe remove-d, after which the member 1:2 may be removed. The supporting members 5 are readily detachable, and after detaching the same, the lamp 20 may be removed from the socket 3.

By the arrangement and disposition ofthe members 12 and l5, and by reason of the translucent and light reflecting properties o the same, I am enabled to produce a lamp of highly desirable properties which economically and agreeably distributes the light values of the source of light and produces a very pleasant and attractive light. The members 12 and 15 are so arranged that some light reflected from the surface 13 of member 12 will be received by the outer surface 21 of the member l5, the outer surfaces of both members 12 and 15 being sui'ciently reflecting to help distribute any light received by them by reection.

It is, of course, to be understood that my invention is not to be limited to the specic embodiment thereof, here shown and described by way of example merely.

What I claim is: In an electric lighting fixture, the combination of a lamp and socket, a socket cover having an outwardly extending flange, a.

FREDERICK YV. MATHIEU. 

